Home / 186.20-256.98-108.57

Finding the Fourth Proportional to 186.20, 256.98 and 108.57

Calculator

Solution

The fourth proportional to 186.20, 256.98 and 108.57 is: 149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.20 : 256.98 = 108.57 : x
  2. Step 2: Convert to fraction form
    186.20/256.98 = 108.57/x
  3. Step 3: Cross multiply
    186.20x = 256.98 × 108.57
  4. Step 4: Simplify right side
    186.20x = 27,900.32
  5. Step 5: Solve for x
    x = 27,900.32/186.20
  6. Step 6: Final answer
    x = 149.84

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.